Omxh264enc SliceIntraRefreshEnable

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hi
I try to use the SliceIntraRefreshEnable whose objective I believe is to spread out the I frame across several P-frames. Still no matter how I try it seems that this has no effect. Is there any decent documentation available besides the non-informative gst-inspect-1.0 omxh264enc ?

3

Hi,
The property is to encode I frames instead o fIDR frames. If it is enabled, you will see frames being encoded like:

IDR P P P ... I P P P ... I P P ...

The fist frame is IDR frame and the rest are I frames.

Spreading out the I frame across several P-frames is advanced function and not supported in default L4T release.

Please note we are deprecating omx plugins. Fur leveraging hardware encoding on Jetson Nano, please use nvv4l2h264enc.

4

Thanks for the clarification, my misunderstanding. The feature I was looking for “periodic intra refresh” would be welcome if that emerges in later updates. And thanks for the pointer to nvv4l2h264enc.